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Go ahead, circle the parking lot till your favorite song is over. Polk Audio's DXi Series speakers will make you want to hit "repeat" so you can hear it all over again. Polk uses a high-tech approach and ideal materials to give your tunes an exciting new edge.

Precision woofers showcase your music
The DXi350 speakers feature 3-1/2" polymer/mica composite cones that are lightweight and stiff, so they can create a big sound with minimal distortion. Polk analyzes their drivers in motion to ensure that cone movement is even and precise. Polk also uses laser imaging to craft woofer cones that are perfectly balanced to resist distortion-causing resonances.

Silk/polymer dome tweeters broadcast sweet sound
Rest assured, you'll hear every detail of your most enthralling musical moments. Each 1/2" silk/polymer dome tweeter brings out the high-frequency highlights in your music, and a proprietary magnetic liquid cools each tweeter so you'll get clear sound and excellent long-term performance. From an intensely quiet acoustic pluck to the most exhilarating electric solo, it'll be a very entertaining ride.

Product Research

Features

Overview: The Polk Audio DXi Series 3-1/2" two-way speakers
(DXi350) are great in-dash or rear seat speakers. The DXi Series speakers utilize various Polk Audio
technologies for legendary Polk sound in your vehicle.

High Efficiency Design: The Polk Audio DXi Series speakers feature
a
high efficiency design so less amplifier power is needed for more audio output. Meaning better sound and
more volume using less power.

Klipple Optimized Components: For a driver to reproduce complex sounds
accurately, the cone must move in exactly the same distance and manner in both
directions of travel. The Klippel distortion analyzer, a device that uses a
laser and sophisticated software to do large-scale analysis of drivers in
motion, lets Polk optimize the speaker's motor structure, voice coil alignment,
and suspension to yield the best possible performance.

Bass Blockers: The DXi350 speakers include two 200
micro-farad capacitors which act as 200 Hz high-pass filters to block bass
frequencies from the speakers. These should be installed in-line on the positive
(+) speaker lead of each speaker.

Mounting: The Polk Audio DXi350 speakers fit in a standard 3-1/2
opening with two mounting holes. No grilles are supplied.

Our Product Research Team

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team. They verify what’s in the box, check the owner's manual, and record
dimensions, features and specs. We stay on top of new products and technologies
to help people make informed choices.

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Excellent detail

Great little speaker. Much clearer and more defined sound over stock dash speakers in my 2013 Dodge ram1500 quad cab.

I was confused by the accessories included with the speakers. (Large capacitors maybe?) needed soldering somehow? Regardless i hooked these guys into the system directly. (not having a soldering iron or many tools as i have just moved here.)

I would suggest using some bass blockers with these speakers. It appears the dash speaker signal is not run through a crossover in this vehicle. and while they handle full range signal, they arent made for bass. and i think it would be better just to remove the excess work from them. I will be adding bass blockers when i go ahead and get a soldering iron.

Excellent bargain!

I installed these in my 2006 Dodge Durango to replace the stock dash speakers. My truck has the stock Alpine stereo system without navigation. These speakers made a big improvement on the sound of the stereo.

Amazing Speakers!

I put these in to replace some horrible factory speakers in my 2001 Saab 9-3. They are a DRAMATIC improvement. Crisp and clean sound. No distortion whatsoever. I actually look forward to driving to work now. HIGHLY recommended!

3 1/2 inch Polk installed in a BMW Z3

Clear bright and easy to install. The BMW Z3 is a challenge to improve the sound quality. This small speaker with small cut out and minimal depth made for an eash install below the seat belt harness reels. Certainly there is minimal base but.these are primarily used to fill mid range and voice. The do/the job very wel, allowing reasonable listening with the top down at freeway speeds. I definitely recommended these for the little Z, sometimes you want to listen to more than just the motor and wind.

Dash Speakers - 1987 Chevy K5 Blazer

Very easy replacement for dash speakers on '87 Chevy K5 Blazer. Once order was placed online, I received a link to the installation instructions. Received speakers the next day. Box contained speakers, adapters, bass blockers, and wiring harness adapters. Installation was easy. We installed the Bass Blockers (easy to wire) and the sound is great!!! Highly recommend.

dash speakers in Ram 1500 quad cab

Written By SteveD, TX on Thursday, November 14, 2013

Wow. Absolutely amazing separation and definition. Replaced factory 3.5s in the dash with these. I swear I can hear the keys clicking on the saxophone on live blues. These would be worth 4x the price, easily.

Just what I was looking for!

I was looking for a way to get a little more sound quality out of the sound system in my 2008 MX-5 Miata. My setup consists of: Pioneer X930BT Head Unit, Rockford Fosgate Punch PBR300X2 amplifier under the drivers seat, stock door and rear speakers and a Sound Ordnance B-8PTD under the passenger seat. I've been pretty happy with the sound from the factory door speakers, but the rear speakers contributed very little to the over all sound of my system.

The goal was to add a little more volume and perhaps a crisper tweeter sounds. Based on a recommendation, I ordered a pair of the Polk Audio DXi350 these from Crutchfield. I already knew some modifications were in order to make these fit my car. The Crutchfield web sight indicates these speakers "does not fit". It's because the frames of the new speakers are slightly bigger and will -not- drop into the holes in the metal mounting bracket. In order to make them fit, I had to remove some metal...making the holes about 1/4" wider overall. I used a Dremel cut off wheel and a little patience to do this part. I smoothed things out with a Dremel grinding wheel and the wire brush on the bench grinder.

Once they were in place and all wired up, I feel they achieved my goal of rounding out the sound of my system.

Polk Audio DXi350

Not sure whether the results are from the new Polk speakers, or from the use of "bass blocker" capacitors, but the soundstage is much better defined. I do notice a perceived lack of bass from the front, but the more I listen, the more I am liking the sound.

small size, clear sound

very clear sound for the price, not too bright on highs, not too low on midbass. a good generic speaker. you can feel the quality by holding it. I used it to replace my BMW X3 2004 speakers, so far, I'm happy.

WOW! - No, really, WOW!

These speakers make a HUGE difference in my 2010 Ram 1500 (stock stereo - upgraded head unit). It took about 15 min to install the pair but I couldn't get out of the truck for over an hour afterwards because I had to listen to them. The improvement over the factory speakers is really impressive, I'll be installing another set in my wife's jeep this weekend!

Pros:Greatly improved sound, perfect fit, great value for the money. Crutchfield included wiring adapter made the install really simple.

Polk Audio DXi350

Im really impressed with these speakers. I have them installed in my 2007 Altima. Right now im driving them with my head unit and they are really loud for their size. I bought these after a crutchfield tech recommended them to me. I recommend them for anyone looking to upgrade their factory speakers!

Pros:Great sound, quality material at an affordable price!

Cons:May require some custom fabrication depending on your vehicle mounting location. Also the tweeter needs alot of depth to fit behind the factory grill. I had to do use my dremel to make them fit, but they are well worth it.

Perfect for the front dash. (Volvo 850)

Replaced the tweeters in the dash of my son's 1995 Volvo 850. These dropped right in, and sound great. Huge improvement. Great voice coil / magnet structure gets those little cones pumping more mid / low that a speaker this size should be expected to.

Nice little speakers!

I got these with reward points for free. I added these to dash of 2008 Dodge Ram WITHOUT Infinity system. Crutchfield says they don't fit, but that is incorrect. The brackets are already there and these fit nicely, you just then need to run your own speaker wire. (Recommend wiring in series.) These add a nice up-front presence to the music from the low door mounted speakers in front. A previous reviewer complained about a lack of bass, but, Duh, these are 3 1/2 inch, basically a mid-range and tweeter, without the woofer. Polk even supplies capacitors to use as bass blockers to filter out anything from 200 hz down.

Pros:Add a nice up front presence to music over just having the door mounted speakers

A lot of sound in a small package

I put these in the dash of a '72 Cadillac convertible, the only speakers in this car. They give plenty of sound at a decent quality. By decent, meaning as good as it gets without other speakers to provide bass, etc. They are some serious bang for the buck.

Pros:Easy install, good quality, loud without distorting

Cons:The instructions may be hard to follow for someone who has never done car audio before.

Excellent upgrade

Crutchfield and Polk Audio.To of the top names in car electronics.They have both provided the very best in my shopping and listening pleasure.You will not be disappointed having had both these companies outfit your car.

Great value for money

Pick these up for the price. Can't beat them for the price - even at full retail they would be a good buy. Very happy with them - much better sound than stock. Installed them in the dash of a FJ Cruiser.

GREAT value and sound for the money

Remember... Your not ever going to get big sound out of a 3.5" speaker, but for a stock speaker replacement or upgrade, these are the absolute way to go, great sound for what they are! Very happy with the sound quality upgrade, with out spending a lot of money

Polk Audio DXi350

they fit my 1986 mustang with very little modification. I only had to remove some of the foam from the underside of the dashpad for them to fit. they sound great and are a great price for such a quality speaker.

Polk DXI350

Great sounding speaker's. They fit excellent in the dash of a 2013 Ram 1500 quad cab with base radio. The speaker's are noticeably louder and cleaner than the factory ones. I installed the included bass blockers because they are only 3.5 inch speaker's.

Polk Audio DXi350

Swapped out a couple of Polk DBs for these even though the specs were identical. These sound better in my opinion. The highs are bearable and the sound has fullness better than what I experienced with the DBs.

Pros:Warm, full sound without the overly sharp highs.

Cons:Could've had a deeper low frequency. That would earn a 5 star rating from me.

Great Little SPeaker!

Written By JW, Charlottesville, VA on Tuesday, June 18, 2013

I installed this in the dash of my 2014 Jeep Grand Cherokee and it really helped liven up the sound quite a bit. Vocals and instruments were clearer and it has made my overall listening experience much more enjoyable. Not bad for the price!!

Great upgrade in 2011+ Sonata

I used these to replace the anemic stock "mid-level" dash speakers in my 2011 Sonata. It states that these do not fit. But if you re-drill some holes in the speaker mounting tabs and cut a 1/4" off of them, it can be done with no other cutting/interference to the vehicle. The magnet may rub on a piece of sheet metal under the dash but a couple of layers of electrical tape should avoid any rattles. The 92db level makes up for the 4ohm vs. 2ohm on the stock. In my application the supplied base blocker were not needed, but the wire adaptors were great. I ordered these late on a Monday, the free shipping had them here by Friday and I was smiling by 9:00am Saturday! The sound quality vastly superior to the stock units and the imaging is now how and where it should be. For $30 you can't go wrong with these!

Polk Audio DXi350

These speakers are clear and that's about all I can say for them. They are completely overpowered by the Polks I installed in the rear and with the bass blockers installed, they are basically little tweeters. I had no choice since the car ( a '59 Thunderbird) didn't have room for anything bigger.

Fantastic replacement for stock dash speakers

WOW!! What a fantastic deal on a fantastic speaker - and with Crutchfield's install guide and speaker adapter wires it was much easier than I thought. I have a 2003 Chrysler Sebring Convertible with the "upgraded" (HA-HA) infinity sound system. I replaced the door/rear speakers within one week of getting the car back in 2006, but, I had convinced myself that the dash speakers sounded fine - truth was I was not anxious to pull the windshield top-trim, A-Pillar trim and dash front-trim just to get to the factory speakers. But, after I installed my new head-end from Crutchfield I decided it was time to take the plunge. With the Crutchfield guide, and some careful work (and a little help/advice from my neighbor) I got the factory speakers out (the foam surrounds were totally rotted out) and got the new speakers in and working. They sound GREAT! All kinds of mids-highs I was not getting before. I highly recommend these speakers!

Love them!

Used these to replace some stock paper tweeters in my Scion xB in the dash. These were not recommended to fit the dash but I read online many people were installing 4" speakers as direct replacements. Took a chance and these fit with some minor modification. Once I modified, the install was quick and easy. What a difference these speakers made. Crisp highs, more detail, and much louder. For the price they cannot be beat!

In dash replacement for the Jeep SRT8

While these units are listed as a "does not fit" for my vehicle in speaking to the technical representative at Crutchfield it was revealed the dimension that was the concern was the height. It was only 0.1 inches too high. Since the in dash speakers are housed with a plastic grill cover I decided to see if I could fit the DXi350s with a minor modification to the back side of the plastic grill. As it turns out the grill is flexible enough to allow the DXi350 to fit with out modification. There is a very slight bow to the grill but not really noticble. If this is not acceptable one could easily modify the back of the grill with a Dremelor or similar tool to allow for the required clearance. The DXi350s make a very noticable differnce to the frequency responce compared to the stock BA Premium speakers that were replaced. The OEM speakers do not have a true tweater . They are just a 31/2 inch full range cones. I have owned Polk Momos in the past and been impressed with the Polk natural sounding speakers for automotive use.They have none of the sizzle and boom that other units seem to be designed to deliver. The Polks are more like high fidelity designed for automotive use. These units exhibit the same characteristics. Crutchfield is offering these at a great price presently.

Great Purchase!

Used these to replace my stock Toyota FJ Cruiser dash and d pillar 2 1/2 stock speakers. The sound quality is a world of difference, much clearer, louder, and really completes the experience with the Polk sub-woofer and 6 1/2 Polk speakers I added to my truck as well.

Replacement speakers

Speaker was used as a replacement for a center channel in my car. Much higher quality than the paper one it replaced, Which would split on the seam causing an very annoying flutter. I have always found the instructions , faceplates, adapters and speaker connectors very convienent over tha years as a customer.

Polk Audio DXi350 dash speakers for 2012 Ram Truck

Extreme clarity and need minimum power, very efficient speakers. I replaced them first and these 3-1/2" dash speakers sound better than the factory 6x9 door speakers! Crutchfields instructions were a great help for how to do the replacement. Very good model specific instructions. And the wire adapters they threw in the package made it easy!

Good quality Polk with small size fitment

Compact speakers make big Polk sound. They were somewhat impressive for only a 3.5" speaker, you really can't ask for much more from a speaker so small. I'm pretty impressed with their clarity for being a middle of the road replacement in the O.E. location in my Dodge Ram.

Good little speakers

Not bad, not much midrange as they are small speakers, but the highs are fairly smooth and they come with bass blockers which is nice, well constructed, some of the better sounding 3.5" ive played with

Pros:Smooth highs, comes with bass blockers

Cons:The tweater protruds past the mounting surface, if your mounting them to a grill to drop in your gonna have a problem, youve got at least 3/8 inch you have to make up on the mounting surface. Midrange is a bit lacking, but to be expected from small speakers

Will bring a smile to your Face!!

A 100% improvement over factory Kicker 2 way Dash Speakers!! The lows are just incredible as well as both mid and high range, which to me are superb. I would DEFINITELY recommend these speakers to anyone that wants to have the audio in their car or truck rivalrying that of a home audio system!

Sounds Great.

These speakers sound great, especially for a 3.5 inch size. The mids and highs are superb and stand up to my expectations. Also very easy to install in my 1983 300D. They just popped into the old speaker's slot.

Does not fit?

Written By evoxbeck, AL on Friday, April 15, 2011

I have a 1997 Saab 900 SE 2.0L Turbo, your car fitting guide just stated that
these don't fit for my car. I got 4" kenwoods to match my 6.5's and 6x9's. The 4"
would not fit, having it over the stock Saab speaker, it obviously was smaller
than 4". Took it back to the store, picked up these and getting a few bucks back.
I installed them, 30 minutes later I had them installed and working.

Big thing with this small a speaker, I was being a wit n tried these w/o the
PROVIDED bass blocker, was distorted. Eventually would have set me back to
another new set. Enough said, I have bass blockers on all my speakers but my
subs of course which are 2 12" SWE-1243. Great system.